CN108204706B

CN108204706B - Door body and refrigerator with same

Info

Publication number: CN108204706B
Application number: CN201810063309.3A
Authority: CN
Inventors: 张方友; 刘延林
Original assignee: Haier Smart Home Co Ltd
Current assignee: Haier Smart Home Co Ltd
Priority date: 2018-01-23
Filing date: 2018-01-23
Publication date: 2020-11-20
Anticipated expiration: 2038-01-23
Also published as: CN108204706A

Abstract

The invention provides a door body, which comprises a first door body with an object taking opening, a second door body and a driving assembly, wherein the second door body is rotatably connected with the first door body to open or shield the object taking opening; the driving assembly comprises a driving mechanism, a guide rail and an elastic piece, wherein the driving mechanism is arranged on the first door body and drives the main rotating shaft to rotate along the axial direction of the main rotating shaft and simultaneously outwards protrude out of the first door body, the guide rail is arranged on the first door body to limit the moving track of the main rotating shaft, the elastic piece is connected with the first door body and the second door body, one end of the guide rail is rotatably connected with the first door body, and the other end of the guide rail is a free end. The second door body rotates to open the object taking opening and moves outwards at the same time, and interference between the second door body and the existing racks in the box body is avoided.

Description

Door body and refrigerator with same

Technical Field

The invention relates to the field of household appliances, in particular to a door body assembly with a small door capable of being opened in a rotating mode and a refrigerator.

Background

In the high-end refrigerator on the existing market, most machine types are provided with a door-in-door structure, the door-in-door structure not only can improve the appearance design effect of the refrigerator, but also can store and take food in the refrigerator more conveniently. The opening and closing of the existing door usually takes one side as a shaft, and the other side applies pulling force or pushing force to open and close the door body; in the process of accessing food, the door body can be opened at a larger or smaller angle, so that the cold leakage is serious. And the cold leakage problem can cause the press to work frequently, and the power consumption is increased.

In view of the above, there is a need for an improved door assembly and refrigerator with a small door to solve the above problems.

Disclosure of Invention

The invention aims to provide a door body assembly with a small door capable of being opened in a rotating mode and a refrigerator.

In order to achieve the above object, the present invention provides a door body, including a first door body having an object-taking opening, a second door body rotatably connected to the first door body to open or shield the object-taking opening, and a driving assembly, wherein the second door body has a main rotating shaft and a slave rotating shaft located on the same straight line, one of the main rotating shaft and the slave rotating shaft is located in the middle of the upper end of the second door body, and the other one is located in the middle of the lower end of the second door body; drive assembly is including locating drive on the first door body make when main pivot is followed its axial pivoted main pivot is protruding to be stretched out the actuating mechanism of the first door body, locate in order to inject on the first door body follow the guide rail of pivot removal orbit, connect the first door body with the elastic component of the second door body, the one end of guide rail with the first door body rotates to be connected, and the other end is the free end.

As a further improvement of the present invention, the driving mechanism includes a switch disposed outside the first door body or the second door body, a motor in communication connection with the switch, a driving wheel in transmission connection with the motor, a cam connected with the driving wheel through a fixing rod, a driven wheel engaged with the driving wheel, and a coupling connecting the driven wheel and the main rotating shaft, wherein distances from different positions of an upper outer edge of the cam to a central axis of the fixing rod are different, and when the driving mechanism drives the main rotating shaft to rotate along an axial direction thereof and simultaneously causes the main rotating shaft to protrude outward from the first door body, the elastic member is engaged with the second door body so that the coupling and the cam are always in contact with each other.

As a further improvement of the present invention, the coupling includes a first bracket fixedly connected to the driven wheel, a second bracket fixedly connected to the main rotating shaft, and a connecting rod rotatably connected to both the first bracket and the second bracket in the up-down direction, and the connecting rod is always in contact with the outer edge of the cam.

As a further improvement of the present invention, the bottom of the second door body has an accommodating cavity, and the main rotating shaft is located in the accommodating cavity; one end of the second bracket, which is far away from the connecting rod, is provided with a fixed block, and a through hole for accommodating the main rotating shaft and a positioning structure for positioning the main rotating shaft and the through hole along the circumferential direction of the main rotating shaft are arranged in the fixed block; the driving mechanism further comprises an elastic supporting piece connected between the fixing block and the main rotating shaft or the accommodating cavity.

As a further improvement of the present invention, the cam has a first cam block and a second cam block respectively disposed at two sides of the fixing lever, the distance from the outer edge of the first cam block to the central axis of the fixing lever is the same, and the distance from the outer edge of the second cam block to the central axis of the fixing lever is gradually increased along the direction from the first cam block to the second cam block; the cam is symmetrically arranged along the connecting line of the middle position of the outer edge of the second cam block and the central shaft of the fixed rod, and when the second door body covers the fetching opening, the coupler is abutted to the middle position of the outer edge of the second cam block.

As a further improvement of the present invention, the elastic member is connected between the first door body and the upper rotating shaft.

As a further development of the invention, the elastic element is located in the guide rail.

As a further improvement of the invention, the periphery of the second door body is provided with a sealing structure matched with the fetching port of the first door body.

As a further improvement of the invention, the second door body is provided with a plurality of bottle seats.

In order to achieve the purpose, the invention also provides a refrigerator which comprises a refrigerator body and the door body.

The invention has the beneficial effects that: according to the door body, the auxiliary rotating shaft and the main rotating shaft are arranged in the middle of the second door body, so that when the second door body rotates to open the object taking opening, part of the object taking opening can be shielded, the opening angle is small, and cold leakage can be reduced; the second door body is enabled to protrude outwards out of the first door body in the rotating and opening process through the driving assembly, so that the distance of the second door body protruding into the box body towards the side, rotating in the box body, of the second door body is small, interference between the second door body and the existing racks in the box body is avoided, a gap does not need to be reserved between the existing racks and the second door body, and the space utilization rate in the box body is high; and the second door body with any width can be rotated and opened without interfering with the racks in the box body.

Drawings

Fig. 1 is a schematic structural view of a refrigerator of the present invention;

FIG. 2 is a schematic structural view of the door body of FIG. 1 with the wicket in a closed position;

FIG. 3 is a schematic view of the structure of the small door of FIG. 1 in an open state;

fig. 4 is a partial sectional view of the refrigerator of the present invention with the small door opened by 90 °;

FIG. 5 is a view of the driving wheel in cooperation with the driven wheel of FIG. 4;

FIG. 6 is a schematic view of the cam of FIG. 4;

FIG. 7 is a cross-sectional view taken along the line A-A of FIG. 4 with the door removed from the vial seat and its retaining structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, a refrigerator 100 according to the present invention includes a refrigerator body 1, a door body 2, and a storage compartment surrounded by the refrigerator body 1 and the door body 2, wherein a rack 11 for storing articles is disposed in the storage compartment, and the door body 2 has a bottle seat 20 for storing articles.

Referring to fig. 1 to 7 in detail, the door 2 includes a first door 21 having an object-taking opening, and a second door 22 rotatably connected to the first door 21 to open or shield the object-taking opening, and the bottle seat 20 is disposed on the second door 22, so that the second door 22 can be rotatably opened only when an object needs to be taken or placed in the bottle seat 20, thereby reducing cold leakage. In this embodiment, the second door 22 has a main shaft 221 and a sub shaft 222 located on the same straight line, and one of the main shaft 221 and the sub shaft 222 is located at the middle of the upper end of the second door 22, and the other is located at the middle of the lower end of the second door 22. According to the present invention, the auxiliary rotating shaft 222 and the main rotating shaft 221 are disposed at the middle portion of the second door body 22, so that when the second door body 22 rotates to open the fetching opening, a part of the fetching opening can be shielded, the opening angle is small, and cold leakage can be reduced.

The door body 2 still includes drive assembly, drive assembly is including locating drive on the first door body 21 make when main pivot 221 is followed its axial rotation main pivot 221 outwards protrudes the actuating mechanism 23 of the first door body 21, locate in order to inject on the first door body 21 from the guide rail 24, the connection of pivot 222 removal orbit the first door body 21 with the elastic component 25 of the second door body 22, the one end of guide rail 24 with the first door body 21 rotates to be connected, and the other end is the free end. In the process that the second door 22 rotates to open the article taking opening, the secondary rotating shaft 222 drives the guide rail 24 to rotate relative to the first door 21 in the process that the secondary rotating shaft 22 moves along with the second door 22, but the secondary rotating shaft 222 does not disengage from the guide rail 24, the elastic member 25 elastically deforms in the process to generate a pull-back force for pulling the second door 22 back to cover the article taking opening, and the second door 22 smoothly rotates under the cooperation of the driving mechanism 23, the guide rail 24 and the elastic member 25.

When the second door 22 needs to be rotated to open the fetching port, the driving mechanism 23 drives the main rotating shaft 221 to drive the second door 22 to simultaneously make the second door 22 protrude out of the first door 21 in the rotating and opening process, so that the distance of the second door 22 protruding into the box 1 towards the side rotating in the box 1 is very small, interference with the existing rack 11 in the box 1 is avoided, a gap does not need to be reserved between the existing rack 11 and the second door 22, and the space utilization rate in the box 1 is high; and the second door 22 of any width can be rotated to open without interfering with the racks 11 in the cabinet 1. In this process, the secondary rotating shaft 222 drives the guide rail 24 to rotate relative to the first door body 21 in the process of moving along with the second door body 22, but the secondary rotating shaft 222 does not disengage from the guide rail 24, the elastic member 25 is elastically deformed to generate a pulling force, and the driving mechanism 23, the guide rail 24 and the elastic member 25 are matched to enable the second door body 22 to smoothly rotate. Of course, the elastic member 25 applies a pulling force to the second door 22, and can be accommodated in the article taking opening when the second door 22 closes the article taking opening; of course, the second door 22 may be driven by the second driving assembly to rotate and close the fetching port.

Specifically, referring to fig. 3 and 4, the elastic element 25 is connected between the first door body 21 and the driven shaft 222, and preferably, the elastic element 25 is located in the guide rail 24, so that the user is not influenced to take and place articles from the article taking opening when the second door body 22 is opened.

Specifically, as shown in fig. 3 to 6, the driving mechanism 23 includes a switch (not shown) disposed outside the first door body 21 or the second door body 22, a motor 231 in communication connection with the switch, a driving wheel 232 in transmission connection with the motor 231, a cam 233 connected with the driving wheel 232 through a fixing rod 236, a driven wheel 234 engaged with the driving wheel 232, and a coupling 235 connecting the driven wheel 234 and the main rotating shaft 221, wherein different positions of an upper outer edge of the cam 233 are different from a central axis of the fixing rod 236; when the driving mechanism 23 drives the main rotating shaft 221 to rotate along the axial direction thereof, the elastic member 25 applies force to the second door body 22 so that the coupling 235 and the cam 233 always contact with each other. When the cam 233 is abutted against the coupler 235 at different positions of the upper outer edge of the cam 233, the coupler 235 is away from one end of the driven wheel 234 and is away from the plane where the first door body 21 is located by different distances, so that the cam 233 rotates and presses the coupler 235 to drive the main rotating shaft 221 to protrude outwards and extend out of the first door body 21, and the second door body 22 moves outwards while rotating.

The motor 231 is a stepping motor 231, and after receiving a signal sent by the switch, the stepping motor 231 respectively drives the cam 233 and the coupling 235 to rotate through the driving wheel 232 and the driven wheel 234, and the cam 233 presses the coupling 235 to move outwards, so as to drive the second door body 22 to move outwards in the process of rotating and opening.

The coupling 235 includes a first support 2351 fixedly connected to the driven wheel 234, a second support 2353 fixedly connected to the main shaft 221, and a connecting rod 2352 rotatably connected to the first support 2351 and the second support 2353 in an up-and-down direction, wherein the connecting rod 2352 is always abutted to an outer edge of the cam 233. The first support 2351 and the second support 2353 both include a Y-shaped fixing frame and a support frame positioned on the fixing frame, the connecting rod 2352 is rotatably connected with the middle position of the support frame, and the connecting rod 2352 can rotate up and down relative to the support frame. When the link 2352 moves outward by being pressed by the cam 233, the link 2352 moves downward at the same time near one end of the second support 2353; conversely, as the link 2352 moves inward, the link 2352 moves upward simultaneously near the end of the second support 2353.

Further, the bottom of the second door body 22 has a receiving cavity 223, and the main shaft 221 is located in the receiving cavity 223; a fixing block 2354 is provided at one end of the second support 2353, which is far away from the connecting rod 2352, and a through hole (not shown) for accommodating the main rotating shaft 221 and a positioning structure (not shown) for positioning the main rotating shaft 221 and the through hole along the circumferential direction of the main rotating shaft 221 are provided in the fixing block 2354; when the cam 233 rotates, a force is applied to the connecting rod 2352, the connecting rod 2352 drives the second support 2353 to rotate, the fixing block 2354 moves up and down relative to the main rotating shaft 221 and drives the main rotating shaft 221 to rotate under the action of the positioning structure, and the main rotating shaft 221 drives the second door body 22 to rotate; the driving mechanism 23 further includes an elastic support 224 connected between the fixing block 2354 and the main rotating shaft 221 or the accommodating cavity 223, and the elastic support 224 plays an elastic supporting role when the second support 2353 moves up and down, so as to prevent the second door 22 from moving down.

Referring to fig. 4 and 6, the cam 233 has a first cam block 2331 and a second cam block 2332 respectively disposed at two sides of the fixing rod 236, the distance from the outer edge of the first cam block 2331 to the fixing rod 236 is the same, and the distance from the outer edge of the second cam block 2332 to the fixing rod 236 is gradually increased along the direction from the first cam block 2331 to the second cam block 2332. The cams 233 are symmetrically disposed along the middle position of the outer edge of the second cam block 2332 and the connecting line of the fixing rod 236, and when the second door 22 covers the object-taking opening, the coupling 235 abuts against the middle position of the outer edge of the second cam block 2332, and the second door 22 can open or close the object-taking opening along two directions.

When the second door 22 needs to be rotated to open the object taking opening, the first cam block 2331 firstly presses against the connecting rod 2352, and in the process, the second door 22 only rotates around the slave rotating shaft 222 and the main rotating shaft 221 without moving outwards, so that the outer edge of the second door 22 is conveniently and quickly separated from the object taking opening; when the second cam block 2332 presses against the connecting rod 2352, the second door 22 rotates and moves outwards, so that the resistance in the whole process is small.

In addition, as shown in fig. 7, the periphery of the second door 22 has a sealing structure 26 matched with the article taking opening of the first door 21, the sealing structure 26 is a PVC rubber pad embedded into the periphery of the second door 22, the section of the sealing structure is arc-shaped, and when the sealing structure is in surface contact with the article taking opening, the second door 22 can be normally opened and closed by rotating in two directions, so that the effective heat preservation of the refrigerator 100 is realized.

In summary, in the door body 2 of the present invention, the auxiliary rotating shaft 222 and the main rotating shaft 221 are disposed at the middle portion of the second door body 22, so that when the second door body 22 rotates to open the article taking opening, a part of the article taking opening can be shielded, the opening angle is small, and cold leakage can be reduced; the second door 22 is enabled to protrude outwards out of the first door 21 through the driving assembly in the process that the second door 22 is opened in a rotating manner, so that the distance from the second door 22 to the side rotating towards the box body 1, which protrudes into the box body 1, is very small, interference with the existing rack 11 in the box body 1 is avoided, a gap does not need to be reserved between the existing rack 11 and the second door 22, and the space utilization rate in the box body 1 is high; and the second door 22 of any width can be rotated to open without interfering with the racks 11 in the cabinet 1.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims

1. A door body is characterized by comprising

The first door body is provided with a fetching opening;

the second door body is rotatably connected with the first door body to open or shield the article taking opening and is provided with a main rotating shaft and a slave rotating shaft which are positioned on the same straight line, one of the main rotating shaft and the slave rotating shaft is positioned in the middle of the upper end of the second door body, and the other one of the main rotating shaft and the slave rotating shaft is positioned in the middle of the lower end of the second door body;

the driving assembly comprises a driving mechanism, a guide rail and an elastic piece, wherein the driving mechanism is arranged on the first door body and drives the main rotating shaft to rotate along the axial direction of the main rotating shaft, and the main rotating shaft protrudes outwards out of the first door body at the same time;

the driving mechanism comprises a switch arranged on the outer side of the first door body or the second door body, a motor in communication connection with the switch, a driving wheel in transmission connection with the motor, a cam connected with the driving wheel through a fixing rod, a driven wheel meshed with the driving wheel and a coupler connected with the driven wheel and the main rotating shaft, wherein different positions of the upper outer edge of the cam are different from the distance of the central shaft of the fixing rod, the driving mechanism drives the main rotating shaft to rotate along the axial direction of the main rotating shaft, and when the main rotating shaft protrudes outwards out of the first door body, the elastic piece is used for the second door body so that the coupler and the cam are always in contact with each other.

2. The door body of claim 1, wherein: the shaft coupling include with follow driving wheel fixed connection's first support, with main pivot fixed connection's second support, with first support with the second support all rotates the connecting rod of connecting along the up-and-down direction, the connecting rod with the outward flange of cam is inconsistent all the time.

3. The door body of claim 2, wherein: the bottom of the second door body is provided with an accommodating cavity, and the main rotating shaft is positioned in the accommodating cavity; one end of the second bracket, which is far away from the connecting rod, is provided with a fixed block, and a through hole for accommodating the main rotating shaft and a positioning structure for positioning the main rotating shaft and the through hole along the circumferential direction of the main rotating shaft are arranged in the fixed block; the driving mechanism further comprises an elastic supporting piece connected between the fixing block and the main rotating shaft or the accommodating cavity.

4. The door body of claim 1, wherein: the cam is provided with a first cam block and a second cam block which are respectively arranged at two sides of the fixed rod, the distance from the outer edge of the first cam block to the central shaft of the fixed rod is the same, and the distance from the outer edge of the second cam block to the central shaft of the fixed rod is gradually increased along the direction from the first cam block to the second cam block; the cam is symmetrically arranged along the connecting line of the middle position of the outer edge of the second cam block and the central shaft of the fixed rod, and when the second door body covers the fetching opening, the coupler is abutted to the middle position of the outer edge of the second cam block.

5. The door body of claim 1, wherein: the elastic piece is connected between the first door body and the driven rotating shaft.

6. The door body of claim 5, wherein: the elastic piece is positioned in the guide rail.

7. The door body of claim 1, wherein: the periphery of the second door body is provided with a sealing structure matched with the object taking opening of the first door body.

8. The door body of claim 1, wherein: the second door body is provided with a plurality of bottle seats.

9. The utility model provides a refrigerator, includes box and door body, its characterized in that: the door body according to any one of claims 1 to 8.